Manner of determination of value when such value is not ascertainable [Rule 3] :

The value of taxable service, where such value is not ascertainable, shall be determined by the service provider in the manner described below.

Subject to the provisions of section 67, the value of taxable service, where su ch value is not ascertainable, shall be determined by the service provider in the following manner:-

(a) Value of similar services: The value of taxable service shall be equivalent to the gross amount charged by the service provider to provide similar service to any other person subject to fulfillment of the conditions below:

1. Such service is in the ordinary course of trade.

2. The gross amount charged is the sole consideration.

(b) When value of similar services cannot be ascertained: Where the value cannot be determined in accordance with clause (a), the service provider shall determine the equivalent money value of such consideration. However, such value shall, in no case be less than the cost of provision of such taxable service.